1. Plural of lanthanum; chemical elements with atomic numbers 57–71, characterized by similar chemical properties and used in electronics, catalysts, and alloys.
Usage: technical; chemistry

Examples

• Lanthanums are essential components in modern smartphone screens and batteries.
• The lanthanums group includes elements such as cerium, dysprosium, and erbium.
• Industrial applications of lanthanums range from petroleum refining to permanent magnets.
• Scientists study the properties of lanthanums to develop more efficient catalysts.
• Lanthanums are mined primarily in China and are critical for green energy technologies.